Which of these was not a key difference between northern and southern states at the constitutional convention? wanting to protect states' interests vs. a government with strict ruleshaving more, larger cities vs. having fewer, smaller citieswanting to protect agriculture vs. protect industrieshaving many enslaved people vs, using less enslaved labor

Wanting to protect states' interests vs. a government with strict rules

Explanation:

The constitutional Convention was held in 1787. At that time, the major issues that debated among southern states and northern states were focused on the morality of slavery along with how to count their representation in the government.

The issue regarding protect states' interests vs. a government with strict rules on the other hand only became a serious issue  in the mid 1800 (which eventually led to the Civil War)

i do believe   by (keeping an organized record of all sources he or she referenced)good luck.

explanation:

the answer is tom watson. tom watson created this epitaph because he wanted to increase the sympathy felt by people towards the murder of mary phagan.